package com.wt.order.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.wt.order.common.R;
import com.wt.order.entity.User;
import com.wt.order.service.UserService;
import com.wt.order.utils.ValidateCodeUtils;
import jdk.nashorn.internal.ir.CallNode;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import java.util.Map;
import java.util.Objects;
import java.util.concurrent.TimeUnit;

/**
 * @author 吴涛
 * @date 2022/5/16 16:01
 * @qq 337144203
 */
@RestController
@RequestMapping("/user")
@Slf4j
public class UserController {
    @Autowired
    private UserService userService;

    @Autowired
    private RedisTemplate redisTemplate;

    @PostMapping("/sendMsg")
    public R<String> sendMsg(@RequestBody User user, HttpSession session){
        log.info("发送的短信{}",user);
        //获取前端传送过来的手机号
        String phone = user.getPhone();
        if (StringUtils.isNotEmpty(phone)){

            //利用ValidateCodeUtils生成一个4位验证码
            String code = ValidateCodeUtils.generateValidateCode(4).toString();
            log.info("code={}",code);
            //调用阿里云提供的短信服务API完成发送短信
            //SMSUtils.sendMessage("瑞吉外卖","",phone,code);

            //将验证码存入session
            //session.setAttribute(phone,code);
            //将验证码存入Redis中，设置过期时间为5分钟
            redisTemplate.opsForValue().set(phone,code,5, TimeUnit.MINUTES);

            return R.success("手机验证码短信发送成功");
        }
        return R.error("短信发送失败");
    }


    /**
     * 手机端，用户的登录
     * @param map
     * @param session
     * @return
     */
    @PostMapping("/login")
    //传过来的是键值对，那我们需要使用map来进行传参
    public R<User> login(@RequestBody Map map,HttpSession session){
        log.info(map.toString());
        //获取手机号
        String phone = map.get("phone").toString();
        //获取验证码
        String code = map.get("code").toString();
        //从Session中获取保存的验证码
        //Object codeInSession = session.getAttribute(phone);

        //从redis中获取到验证码
        Object codeInSession = redisTemplate.opsForValue().get(phone);


        //进行验证码的比对（页面提交的验证码和Session中保存的验证码比对）
        if(codeInSession != null && codeInSession.equals(code)){
            //如果能够比对成功，说明登录成功
            LambdaQueryWrapper<User> queryWrapper = new LambdaQueryWrapper<>();
            queryWrapper.eq(User::getPhone,phone);
            User user = userService.getOne(queryWrapper);
            if(user == null){
                //判断当前手机号对应的用户是否为新用户，如果是新用户就自动完成注册
                user = new User();
                //将phone存入
                user.setPhone(phone);
                user.setStatus(1);
                userService.save(user);
            }
            //登录之后将用户的id存入到session中
            //TODO 将这个也存入到Redis中
            session.setAttribute("user",user.getId());

            //登录已经成功，从redis中删除掉
            redisTemplate.delete(phone);
            return R.success(user);
        }
        return R.error("登录失败");
    }

    /**
     * 退出登录，删除session中的内容
     * @param request
     * @return
     */
    @PostMapping("/loginout")
    public R<String> loginout(HttpServletRequest request){
        request.getSession().removeAttribute("user");
        return R.success("退出成功");
    }



}
